Error: Class 'Ibooks_Controller' not found in/Users/winas/workspace/media_admin/media_books/application/tasks/sample.php
Class that produces error: class Sample_Task extends Ibooks_Controller
Ibooks_Controller path: /Users/winas/workspace/media_admin/media_books/application/controllers/ibooks.php
How can I properly call the function that Ibooks_controller have inside of sample.php
you can't extend a Controller when making a Task. And more importantly, it would be something really bad to do.
I don't know what it is that you're trying to do, but if you want to access any data, you should use models and/or libraries for that.
Besides that, a short explanation on why the class is not found.
Laravel only autoloads files/classes that are in the "models" and "libraries" directories. (There might be more)
Controllers are only loaded when a Route request that controller to be loaded. And will only then search for which controller to load.
If you need to load classes that are not in one of the standard auto-loaded classes, you can load it using the Laravel Autoloader class:
http://three.laravel.com/docs/loading
Related
I’ve created a workbench package in Laravel 4, which is name-spaced and has two directories: Models and Contexts. Somehow, Laravel is loading my models in my Models directory (I have a model in there called User), however, it doesn’t know about my classes in the Contexts directory.
I want to be able to use my context classes in my app’s controllers without specifying the whole namespace, so I thought I’d add them to Laravel’s IoC container. However, it seems I need to create a façade class for each class I wish to add to the container. This isn’t desirable if I have dozens of context classes, as it would mean creating an equal amount of façade classes too.
Is there a way in Laravel to bulk-add classes to its IoC container?
if you want to use one term facades for your classes the laravel way (e.g. MyModel::someAction()) then you have to create your facades. but i'd advise not to do so for so many classes.
if your classes inside contexts folder aren't found then you should check your composer.json file under the autoload entry or do a composer dump-autoload -o.
I'd just DI the classes within the constructor of the class that uses them, so you end up using $this->myService->someAction().
This should answer both Laravel 4 and 5.
First, you need to use the bind method Illuminate\Foundation\Application class, which serves to register binding in the service container. In the Laravel documentation you will find plenty of examples how to do that, but only for a single binding.
If you take a look a the implementation of bind method here or just the definition here, you will notice that this method accepts a string|array. This means you can provide multiple bindings as an array and register all of them in the container with their fully qualified class names. Something like this:
$this->app->bind(['\App\Acme\Service1', '\App\Acme\Service2', '\App\Acme\Service3', ...]
Having this in mind, you can easily get the classes in one namespace (directory) with a reflection, put them in array and use the above method to register them.
Revisiting this question some time later, I think the appropriate solution would be to autoload the classes using my package’s composer.json file, and then import classes using it’s FQN in controllers and other classes:
<?php
use Vendor\Package\Contexts\ContextClass;
class Laravel4Controller extends BaseController {
protected $context;
public function __construct(ContextClass $context) {
$this->context = $context;
}
}
I am new in codeigniter framework.I have some question.When we write some controller class then we call constructor.I am loading some library and some helper.I want to know what is the perfect way for loading this helper and library under construct class or under other functions.If i load everything in construct class then what is the disadvantages for it?if i use more controller class for one project then it is good or bad.Like i want to use some controller class for ajax functionalities,some for form submission,some for other sector.My english is not so good.Please help me.
For common libraries and helpers used by all functions of your controller try to load it in constructor or autoload. Except that for specific libraries e.g. payment gateway load inside the function.
How you use or how many controllers you are using depends upon your needs. But I would suggest you to build separate controllers for separate functions. Like admin for admin functions, users for user related functions, and so on. It build a user friendly URL too.
Well! everything depends on your requirements.
If you need any library , model or helper globally you can autoload it autoload.php.
It means the loading will be done on each request.
if you need any library , model or helper throughout your controller methods you can load them in constructor.
It means loading will be done on each method of controller.
if you need any library , model or helper for specific method you can load them in method.
It means loading will be done in method only.
For example let suppose you nees session and database library throughout your application so you can autoload it.
For a specific controller you need priviliges library so load it in constructor.
For email you need to send load email library in function.
These are only examples. You can explore SO to find more.
Loading takes time and performance. Not noticeable time by human standards, but time regardless. In order to cut of some slack to your server in the future, you do it a favor by only loading whatever is it you require for each page/controller method.
Used (almost) always
You can use application/config/autoload.php for things you almost always use. I usually include the helper url here.
Used (almost) always inside specific controller
Load it inside controller __construct. Don't forget to include parent::__construct();.
Used inside specific page
Load it inside method/function.
Used inside specific function
Load it at beginning or inside if-statement in function. You can load it numerous of times, it will only execute first time.
When I'm developing in NetBeans I have a lot of confusion due to the amount of tabs open. In most cases the controller has the same name of the view or model.
In the convention style guide they say that you can prefix a controller file name with a custom suffix, but doesn't work.
My question is, there is any chance to end all the controller files with "_controller"?
In my example the class is class Verify_login extends CI_Controller { and the file is named verify_login.php. Tried with controller.verify_login.php like they say in the guideline but as I say, doesn't work. Lots of confusion in codeigniter's documentation.
Since the controller is the only thing exposed in the URL, I usually name my views and models with an indicator like "user_view" or "user_model". The controller would just be "user" and in this way I always know which file I'm working on.
Am having problems understanding where classes should be kept in CI. I am building an application that describes / markets mobile phones.
I would like for all of my functions (i.e. getphone, getdetails etc.) to reside in one class called Mobile - I understand that this file should be called Mobile.php and reside in the controllers folder.
Can I then have multiple functions inside Mobile.php? E.g.
public function getphone() {
xxx
xx
xx
}
public function getdetails() {
xxx
xx
xx
}
Or do I need to put each function in its own class?
I'd really appreciate looking at some sample code that works. I've been going through the documentation and google for a few hours, and tried all sorts of variations in the URL to find a test class, but without much luck! I've even messed around with the routes and .htaccess...
All I am trying to achieve is the following:
http:///model/HTC-Desire/ to be re-routed to a function that accepts HTC-Desire as a parameter (as I need it for a DB lookup). The default controller works fine, but can't get anything to work thereafter.
Any ideas?
Thanks
Actually it works like this:
Controllers and Models go to their perspective folders as you know it
If you want to create functions that are not methods of an object, you must create a helper file. More info here :
http://codeigniter.com/user_guide/general/helpers.html
Now if you want to create your own datatypes (classes that don't extend Models and Controllers), you add them to the library folder. So if let's say you want to create a class "Car" you create this file:
class Car{
function __construct(){}
}
and save it in the libraries folder as car.php
To create an instance of the Car class you must do the following:
$this->load->library('car');
$my_car = new Car();
More information on libraries here:
http://codeigniter.com/user_guide/general/creating_libraries.html
Yes, you can have as many functions in a controller class as you'd like. They are accessible via the url /class/function.
You can catch parameters in the class functions, though it's not advisable.
class Mobile extends CI_Controller{
public function getPhone($phoneModel=''){
echo $phoneModel;
//echo $this->input->post('phoneModel');
}
}
http://site.com/mobile/getPhone/HTC-Rad theoretically would echo out "HTC-Rad". HOWEVER, special characters are not welcome in URL's in CI by default, so in this example you may be met with a 'Disallowed URI characters" error instead. You'd be better off passing the phone model (or any other parameters) via $_POST to the controller.
Classes can exist both as Controllers and Models, as CodeIgniter implements the MVC pattern. I recommend reading more about that to understand how your classes/functions/etc. can best be organized.
Off the top of my head, Pyro CMS is an application built with CodeIgniter and the source code is freely available. I'm sure there are others.
I think it's best you handle it from one perspective, that is; create a utility class with all your functions in it.
The answer to the question of where to put/place the class file is the "libraries" folder.
This is clearly stated in the documentation. Place your class in the libraries folder.
When we use the term “Libraries” we are normally referring to the
classes that are located in the libraries directory and described in
the Class Reference of this user guide.
You can read more on creating and using libraries Creating Libraries — CodeIgniter 3.1.10 documentation
After placing the newly created class in the libraries folder, to use just simply load the library within your controller as shown below:
$this->load->library('yourphpclassname');
If you wish to receive several arguments within you constructor you have to modify it to receive an argument which would be an array and you loading/initialization would then be slightly different as shown below:
$params = array('type' => 'large', 'color' => 'red');
$this->load->library('yourphpclassname', $params);
Then, to access any of the functions within the class simply do that as shown below:
$this->yourphpclassname->some_method();
I hope this answers your question if you have further question do leave a comment and I would do well to respond to them.
I have a user class with static methods getById and getByUsername
I have the class in the application/libraries folder
How do I call the classes from a controller?
Theory 1:
$this->user = new User();
$this->user::getById;
Theory 2:
$user = new User();
$user::getById;
or is there a clean way of doing it much like how Kohana helpers do it; much like:
text::random();
here's what I am trying to accompplish:
I want to call a static mehthod in the user library from my controller
In PHP you usually include the file (User.php) and the static methods are ready
User:getById
but then how would I do the same thing in an MVC framework?
shall I do an include too?
Like include ('User.php');?
User::getById();
and
User::getByUserName();
Edit: In response to your question edit, generally frameworks have an auto-loading mechanism that will find and load a class file for you once you reference that class. So when you type User::getById(), the PHP interpreter will see that it needs to load the User class (if it hasn't been loaded already), and run the autoloading procedure to find the correct code to include.
I've never used Kohana, but I would be quite surprised if it didn't use some form of autoloading. If it does not, then yes, a simple include('User.php') will be enough to make the static method calls to User work.
The confusing thing is Kohana's convention of writing "helper" classes with lowercase names.
Your user php file will probably all ready be loaded if your using it as a model, so you can use zombat's suggests of User::getById();.
I don't like to follow their naming convensions for helpers or libraries and instead do:
require_once(Kohana::find_file('libraries', 'user_utils', TRUE, 'php'));